2-8 Output Power Leveling Commands
Programming with GPIB Commands
2-22
PN: 10370-10374 Rev. F
MG369xC GPIB PM
ALC Power Slope
The ALC power slope function provides for linearly increasing or decreasing output power as the frequency
increases to compensate for system, cable, and waveguide variations due to changes in frequency. The
SL1
command turns on the ALC power slope function. The power slope value and the pivot point frequency are
changed using the
SLP
and
PVT
parameter entry commands. The
SL0
command turns off the ALC power slope
function.
Programming Example:
Programming “
SL1 SLP 128 SPS PVT 2.0 GH
” turns on the ALC power slope function and sets the power
slope value to 128 and the pivot point frequency to 2 GHz.
Attenuator Decoupling
The attenuator decoupling function provides for decoupling of the step attenuator (if equipped) from the
ALC system. The
AT1
command decouples the step attenuator, the
ATT(xx)
command provides for setting the
step attenuator value for 0 to 110 dB in 10 dB increments, and the
AT0
command deselects the attenuator
decoupling function.
Programming Example:
Programming “
AT1 ATT08
” decouples the step attenuator from the ALC system and sets the step attenuator
value to 80 dB.
Figure 2-7.
Example of an Output Power Level Command String
RF0
Turns the RF output off.
Selects Level 1 and sets it for 2 dBm.
Selects Level 2 and sets it for 12 dBm.
Selects a power sweep and 10 steps.
Selects a level sweep.
Turns the RF output on.
L1 2 DM
L2 12 DM
PNS 10 SPS
LSP
RF1
Summary of Contents for MG369 C Series
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